Breadcrumb Home > Thesaurus > H Synonyms of hahn Find synonyms for: Noun 1. Hahn, Otto Hahn usage: German chemist who was co-discoverer with Lise Meitner of nuclear fission (1879-1968) WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of hahn (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: meretricious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language